CD4+CD25+ regulatory T cells are activated in vivo by recognition of self.

abstract：:A canonical pre-TCR/TCR signaling pathway critical for thymic T cell development involves sequential phosphorylation and signaling through Lck, Zap70, Lat and Slp76. However, we and others have previously reported that genomic deletion of c-Cbl (Cbl) partially or completely reverses the defects in thymic development i...

journal_title：International immunology

authors： Chiang YJ,Hodes RJ

更新日期：2015-05-01 00:00:00

abstract：:Cyclosporin A (CsA) prevents most immature thymocytes from progressing to a mature phenotype and blocks the deletion of T cells that express self-specific TCR in the small population of cells that achieve maturity. The latter effect may explain the paradoxical observation that this immunosuppressive drug can induce au...

journal_title：International immunology

authors： Urdahl KB,Pardoll DM,Jenkins MK

更新日期：1992-12-01 00:00:00

abstract：:The Ig heavy chain (IgH) locus is controlled by multiple regulatory sequences mapping both within the IgH transcription unit (E mu) and downstream (3') of IgH coding sequences (hs3a, hs1,2, hs3b and hs4). Enhancer knockout studies in mice have implicated E mu in the control of IgH variable region gene assembly, but si...

journal_title：International immunology

authors： Shi X,Eckhardt LA

更新日期：2001-08-01 00:00:00

abstract：:Recent data suggest that initiation of signal transduction via type 1 Fc epsilon receptor (Fc epsilon RI) and other immunoreceptors is spatially constrained to lipid rafts. In order to better understand the complexity and function of these structures, we prepared mAb against lipid rafts from the rat basophilic leukemi...

journal_title：International immunology

authors： Hálová I,Dráberová L,Dráber P

更新日期：2002-02-01 00:00:00

abstract：:An alloreactive CTL clone, 27.B2, produced in the mouse strain combination B6.C-H-2bm1 (bm1) against C57BL/6 (B6) and nominally directed against the Kb molecule has been shown to be peptide dependent. The clone recognizes intact B6, but not intact bm1 or bm3 target cells. However, peptides recognized by 27.B2 CTL can ...

journal_title：International immunology

authors： Falk K,Rötzschke O,Rammensee HG

更新日期：1992-03-01 00:00:00

abstract：:Man has been found to produce highly conserved chitinases. The most prominent is the phagocyte-derived chitotriosidase, the plasma levels of which are markedly elevated in some pathological conditions. Here, we report that both polymorphonuclear neutrophils (PMNs) and macrophages (m) are a source of chitotriosidase. T...

journal_title：International immunology

authors： van Eijk M,van Roomen CP,Renkema GH,Bussink AP,Andrews L,Blommaart EF,Sugar A,Verhoeven AJ,Boot RG,Aerts JM

更新日期：2005-11-01 00:00:00

abstract：:Lactic acid bacteria (LAB) are abundant in the gastrointestinal tract where they continuously regulate the immune system. NK cells are potently activated by dendritic cells (DCs) matured by inflammatory stimuli, and NK cells are present in the gut epithelium and in mesenteric lymph nodes, but it is not known how NK-DC...

journal_title：International immunology

authors： Fink LN,Zeuthen LH,Christensen HR,Morandi B,Frøkiaer H,Ferlazzo G

更新日期：2007-12-01 00:00:00

abstract：:'Programmed cell death' has been used to describe the death of cells killed by cytotoxic T cells or growth factor deprivation. Although bcl-2 can prevent death of cells deprived of growth factor, it failed to protect cells against T cell killing. In spite of bcl-2 expression, the DNA of targeted cells was degraded int...

journal_title：International immunology

authors： Vaux DL,Aguila HL,Weissman IL

更新日期：1992-07-01 00:00:00

abstract：:A subclone (160b) of the human B cell (Karpas 160) was shown to produce a novel cytotoxic lymphokine [Factor 2 (F2)] in addition to tumour necrosis factor alpha (TNF-alpha) and beta (TNF-beta). F2 was found to have selective toxicity to numerous human tumour cell lines, particularly the erythroleukaemic cell line K562...

journal_title：International immunology

authors： Ni J,Meager A,Karpas A

更新日期：1992-04-01 00:00:00

abstract：:Semaphorin 3A (Sema3A), originally identified as a potent growth cone collapsing factor in developing sensory neurons, is now recognized as a key player in immune, cardiovascular, bone metabolism and neurological systems. Here we established an anti-Sema3A monoclonal antibody that neutralizes the effects of Sema3A bot...

journal_title：International immunology

authors： Yamashita N,Jitsuki-Takahashi A,Ogawara M,Ohkubo W,Araki T,Hotta C,Tamura T,Hashimoto S,Yabuki T,Tsuji T,Sasakura Y,Okumura H,Takaiwa A,Koyama C,Murakami K,Goshima Y

更新日期：2015-09-01 00:00:00

abstract：:Tyrosine kinase-2 (Tyk2) participates in the signaling pathways of multiple cytokines in innate and acquired immunity. In the present study, we investigated the in vivo involvement of Tyk2 in anti-type II collagen antibody-induced arthritis (CAIA) using Tyk2-deficient mice. Hind paws of wild-type mice showed massive s...

journal_title：International immunology

authors： Ishizaki M,Muromoto R,Akimoto T,Ohshiro Y,Takahashi M,Sekine Y,Maeda H,Shimoda K,Oritani K,Matsuda T

更新日期：2011-09-01 00:00:00

abstract：:Spectroscopic methods have been applied to elucidate conformational differences responsible for the immunological diversity of two synthetic multichain copolymers, Tyr1Tyr2Glu3Glu4-poly-DL-Ala--poly-Lys and Tyr1Glu2Tyr3Glu4-poly-DL-Ala--poly-Lys. Despite their far-reaching structural similarity in the epitope peptide ...

journal_title：International immunology

authors： Muszkat KA,Schechter B,Sela M

更新日期：1993-06-01 00:00:00

abstract：:Notch2 and Delta-like 1 (Dll1) have been implicated in the development of marginal zone B (MZB) cells. In the present study, we characterized the expression and function of mouse Notch receptors and ligands in the spleen by using newly generated mAbs. Although Notch2 was expressed on both B and T cells in the spleen, ...

journal_title：International immunology

authors： Moriyama Y,Sekine C,Koyanagi A,Koyama N,Ogata H,Chiba S,Hirose S,Okumura K,Yagita H

更新日期：2008-06-01 00:00:00

abstract：:The alternative complement pathway (ACP) in vertebrates is known to be important in inflammatory reactions, and to be activated by foreign substances such as bacterial lipopolysaccharide (LPS) and zymosan, although to date no intrinsic activators have been identified except complement receptor type 2. From the point o...

journal_title：International immunology

authors： Oshima H,Soma G,Mizuno D

更新日期：1993-10-01 00:00:00

abstract：:We investigated the role of IL-7 receptor alpha (IL-7Ralpha) signal in the formation of Peyer's patch (PP) anlage. Although pan-lymphopenia is a common phenotype of rag2-/- and il7ralpha-/- mice, a close inspection revealed nodules corresponding to PP in the adult rag2-/- but not in the il7ralpha-/- mouse. In our prev...

journal_title：International immunology

authors： Adachi S,Yoshida H,Honda K,Maki K,Saijo K,Ikuta K,Saito T,Nishikawa SI

更新日期：1998-01-01 00:00:00

abstract：:Several cis-acting elements regulate the expression of germline transcripts of heavy chain constant region genes and their subsequent switch recombination. To study such elements in the murine gamma1 gene, we have utilized a transgenic approach. In this study we focused on a DNase I hypersensitive site (termed 'Site I...

journal_title：International immunology

authors： Adams K,Ackerly H,Cunningham K,Dunnick W

更新日期：2000-12-01 00:00:00

abstract：:A gelatin sponge model of concomitant tumor immunity was employed in order to examine the clonality of T cells associated with progressing and rejected tumor sites. Here we show that freshly isolated T cells bearing TCR V(beta)1, CDR3 RPGTGN, J(beta)1.1 and TCR V(beta)8, CDR3 GD, J(beta)1.6 predominated progressing an...

journal_title：International immunology

authors： Kurt RA,Park JA,Schluter SF,Marchalonis JJ,Akporiaye ET

更新日期：2000-05-01 00:00:00

abstract：:Based on the similarity in primary structure between the newly characterized ligand for CD40 (CD40L) and the tumor necrosis factors (TNFs), we have modeled a detailed 3-D structure for CD40L. We used the known structure of TNF alpha as a template for the generation of the CD40L model. The soundness of the model-buildi...

journal_title：International immunology

authors： Peitsch MC,Jongeneel CV

更新日期：1993-02-01 00:00:00

abstract：:Src homology region 2-domain-containing phosphatase-1 (SHP-1) plays an important role in the regulation of signaling from various receptors in hematopoietic cells. In mast cells, SHP-1 has been shown to negatively regulate the initial signaling triggered by high-affinity receptor for IgE (FcepsilonRI) and positively r...

journal_title：International immunology

authors： Ozawa T,Nakata K,Mizuno K,Yakura H

更新日期：2007-09-01 00:00:00

abstract：:To investigate the role of the Toll-like receptor (TLR) family in host defense against Toxoplasma gondii, we infected TLR2-, TLR4- and MyD88-deficient mice with the avirulent cyst-forming Fukaya strain of T. gondii. All TLR2- and MyD88-deficient mice died within 8 days, whereas all TLR4-deficient and wild-type mice su...

journal_title：International immunology

authors： Mun HS,Aosai F,Norose K,Chen M,Piao LX,Takeuchi O,Akira S,Ishikura H,Yano A

更新日期：2003-09-01 00:00:00

abstract：:Recombination activating genes Rag-1 and Rag-2 were isolated on the basis of their ability to confer V(D)J recombination activity when co-expressed in fibroblasts. The mode of action of the confer V(D)J recombination activity when co-expressed in fibroblasts. The mode of action of the products of these genes is not kn...

journal_title：International immunology

authors： Kallenbach S,Brinkmann T,Rougeon F

更新日期：1993-02-01 00:00:00

abstract：:Rheumatic fever (RF) follows a throat infection with different M-serotypes of beta-hemolytic group A streptococci (GAS) and can affect different tissues, predominantly the heart. It is thought to be an autoimmune illness. Although histological examination of affected heart shows an infiltrate consisting mainly of T ce...

journal_title：International immunology

authors： Pruksakorn S,Currie B,Brandt E,Phornphutkul C,Hunsakunachai S,Manmontri A,Robinson JH,Kehoe MA,Galbraith A,Good MF

更新日期：1994-08-01 00:00:00

abstract：:The chaperone glucose-regulated protein 94 (GRP94) has long been used to augment peptide presentation to T cells. This chaperone binds antigenic peptides, binds to receptors on professional antigen-presenting cells (APCs), activates these cells and after internalization, transfers the peptides to MHC class I for activ...

journal_title：International immunology

authors： Biswas C,Sriram U,Ciric B,Ostrovsky O,Gallucci S,Argon Y

更新日期：2006-07-01 00:00:00

abstract：:HLA-B*0702 transgenic mice (expressing a chimeric heavy chain with a murine alpha 3 domain: HLA-B7(m alpha 3)) in which the H-2K(b) and H-2D(b) class I-a (Cl I-a(-/-)) genes have been inactivated were compared with H-2K(b)D(b) Cl I-a(+/+) positive controls. Expression of the HLA-B7(m alpha 3) molecules resulted in a 3...

journal_title：International immunology

authors： Rohrlich PS,Cardinaud S,Firat H,Lamari M,Briand P,Escriou N,Lemonnier FA

更新日期：2003-06-01 00:00:00

abstract：:Sera of patients suffering from systemic lupus erythematosus (SLE) frequently contain oligoclonal IgG autoantibodies with high affinity for the ribosomal protein L7 (rpL7). The humoral autoimmune response to rpL7 apparently is driven by antigen and T cell dependent. In order to analyze the T cell response to rpL7 we c...

journal_title：International immunology

authors： Donauer J,Wochner M,Witte E,Peter HH,Schlesier M,Krawinkel U

更新日期：1999-02-01 00:00:00

abstract：:Recent studies have suggested that Fas-mediated apoptosis is involved in the pathogenesis of intestinal injury. In this study, we determined the role of Fas/Fas ligand (FasL) interactions in different T cell compartments using a murine model of small intestinal injury. An intraperitoneal injection of 145-2C11 (anti-CD...

journal_title：International immunology

authors： Miura N,Yamamoto M,Fukutake M,Ohtake N,Iizuka S,Ishige A,Sasaki H,Fukuda K,Yamamoto T,Hayakawa S

更新日期：2005-05-01 00:00:00

abstract：:Mice with a targeted deletion of the T-bet gene exhibit spontaneous airway hyperresponsiveness (AHR), airway inflammation, enhanced recovery of T(h)2 cytokines from bronchoalveolar lavage fluid, sub-epithelial collagen deposition and myofibroblast transformation. Here we analyze the mechanisms responsible for the chro...

journal_title：International immunology

authors： Finotto S,Hausding M,Doganci A,Maxeiner JH,Lehr HA,Luft C,Galle PR,Glimcher LH

更新日期：2005-08-01 00:00:00

abstract：:The T cell Ig domain and mucin domain (TIM) proteins form a conserved family of transmembrane cell-surface glycoproteins expressed by a variety of tissues. Each TIM protein contains a single V-type Ig domain, a glycosylated mucin-like domain, a transmembrane domain and a cytoplasmic domain. TIM proteins recognize a di...

journal_title：International immunology

authors： Wilker PR,Sedy JR,Grigura V,Murphy TL,Murphy KM

更新日期：2007-06-01 00:00:00

abstract：:Intestinal intraepithelial lymphocytes (i-IEL) of aged rats comprise CD4+CD8alphaalpha+ and CD4-CD8alphaalpha+ T cells expressing TCR alphabeta. In the present study, we compared characteristics between CD4+CD8alphaalpha+ and CD4-CD8alphaalpha+ i-IEL, which were purified by a cell sorter from the i-IEL of 6-month-old ...

journal_title：International immunology

authors： Yamada K,Kimura Y,Nishimura H,Namii Y,Murase M,Yoshikai Y

更新日期：1999-01-01 00:00:00

abstract：:The MHC class I antigens enhance the T cell response to various mitogenic stimuli. Class I antigens co-cap and associate with the CD3 structure on these cells. The present work shows that co-aggregation of these MHC antigens with CD3 induces a sustained elevated Ca2+ response in T cells. The duration required for a 50...

journal_title：International immunology

authors： Dasgupta JD,Granja CB,Yunis EJ,Relias V

更新日期：1994-03-01 00:00:00